When mine wake up "early" from naps, I tell them they have to go back to sleep and tuck them back in. Even if they are awake, they have to stay in bed till nap time is over. (Generally speaking anyway. I'm not militant about it. ) They usually fall back to sleep. I would ask the daycare provider what she would do if they woke up early at her house and do that.

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Heather SAHM to 6 who are 7 and under, including 2 sets of twins and our last little miracle, a surviving identical twin, born Oct 2012!